Sulfur dioxide collection

Details Sulfur dioxide collection Sulfur dioxide collection

1975-11-21

1977-01-11

Vertiz, Oscar R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

C01B 1700

Patent

active

040027244

ABSTRACT:
Flue gas that includes sulfur dioxide and alkali-containing flyash is cleansed in a liquid scrubber, followed by classification of discharge from the liquid scrubber into oversize and undersize fractions. The undersize fraction is clarified and recycled for use as a source of liquid scrubbing agent. The oversize scrubber discharge is reduced in particle size to expose more alkali-reactive surface and recycled into the scrubber for further reaction with SO.sub.2.

REFERENCES:
patent: 3632306 (1972-01-01), Villers-Fisher et al.
patent: 3708266 (1973-01-01), Gustavsson
Weintraub et al., A Study of Sulfur Reactions in Furnace Deposits, Transactions of the ASME, Oct. 1961.
Pilot Plant Scrubber Tests to Remove SO.sub.2 Using Soluble Alkali in Western Coal Fly Ash, Tufter et al., 1963.

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